____any sign of their daughter"s school,the anxious couple turned_英语解答

____any sign of their daughter"s school,the anxious couple turned to a policem for help
A.seeing not B.Not to have seen C.Not seeing D.Having not seen (请详细说明

人气：289 ℃　时间：2020-01-30 13:44:27

解答

C现在分词,与逻辑主语the anxious couple 关系是主动关系.现在分词否定是not doing结构.所以这样选.我们老师说是因为分词短语表目的那B不也是分词短语么这里是原因状语吧。